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Plant Pathology

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Bacterial Diseases 101 (06/30/16)

The reports of high winds, hail and rain throughout the last two weeks has contributed to the frequent reporting of bacterial diseases.

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Fusarium Head Blight (Scab) Risk for Small Grains (06/30/16)

A significant portion of the small grains in the southern half of North Dakota are entering stages of kernel development.

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Bacterial blights on dry beans appearing (06/30/16)

Bacterial blights are already appearing in dry edible beans. The amount of damage that we are observing this early is rare and is cause for concern.

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Questions When Managing Cercospora Leaf Spot of Sugarbeet (06/30/16)

As we get closer to the time when growers will start fungicide applications for control of Cercospora leaf spot, growers usually have some questions they will like answered to help in their farm decision making processes.

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Incidence of Ascochyta Blight in Peas and Lentils in Northwest ND (06/23/16)

Scouting of pea and lentil fields in NW ND has revealed low incidence of Ascochyta Blight in lentils (Fig 1), and low to moderate incidence in field pea (Fig 2) so far this season, however, cool and wet conditions in the forecast may lead to increased incidence of this disease.

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Fusarium Head Blight (Scab) Update (06/23/16)

According to both scab risk forecasting models (Figures 1 and 2), the northeast corner of the state currently has a moderate risk of scab developing in susceptible varieties.

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IPM Survey – Wheat Disease Update (06/23/16)

Last week the IPM scouts visited 87 wheat fields and 13 barley fields in North Dakota.

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The Sclerotinia Risk Map is now Interactive (06/23/16)

The Sclerotinia risk map is now interactive! The maps are available

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Getting Prepared for MANAGING Cercospora Leaf Spot of Sugarbeet (06/23/16)

Cercospora leaf spot (CLS) (Figure 1 and 2) is the most destructive foliar disease of sugarbeet in North Dakota and Minnesota.

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Pea Enation Mosaic Virus Detected in Divide County (06/16/16)

Be on the lookout for Pea Enation Mosaic virus (PEMV).

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Fungal Leaf Diseases of Barley and Fungicide Use in Barley (06/16/16)

Fungal pathogens are responsible for several leaf diseases of barley in North Dakota.

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Fusarium Head Blight (Scab) Update (06/16/16)

Small grain growth stages vary throughout the state.

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Pea Disease Diagnostic Series Now Available (06/16/16)

A pocket-size 16-card diagnostic guide for pea diseases is now available on the NDSU website.

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Fusarium Head Blight (Scab) Update (06/09/16)

The moisture events across the state from last week have elevated scab risk for flowering wheat in northeastern and northcentral North Dakota.

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Stripe Rust Update and Reminder of Fungicide Timing (06/09/16)

Stripe rust incidence and severity have been increasing throughout several states in the upper Great Plains.

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Sclerotinia Risk Map for the 2016 Growing Season to Start on June 20th (06/09/16)

The first Sclerotinia risk map for the 2016 season will be available on June 20th, 2016 at three different websites.

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Fusarium Yellows of Sugarbeet Found at Research Site in Moorhead, Minnesota (06/09/16)

Fusarium yellows were first observed in late May and confirmed on June 6 at the NDSU and University of Minnesota research site in Moorhead, MN.

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Fusarium Head Blight (Scab) Risk in Winter Wheat (06/02/16)

Fusarium head blight (scab) risk season has begun in North Dakota as some of the winter wheat fields in the state have headed.

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Field Pea Diseases Review: Bacterial Blight and Brown Spot: (06/02/16)

Bacterial blight is generally not considered an economically important disease of field peas in North Dakota, but severe losses to the disease have been reported in neighboring states.

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